Upright boiler



(No Model.)

' .P- L. RICE.

y UIfRIGHT lBOILEIEL. No. 550,194. Patented Navy-19, 18.95.

ANDREW BLRHAM. PHDTU'UTHQWASMNGTOMRQ UNITED STATES PATENT OEEIcE.

FRANK I.. RICE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE RICE ENGINE ANDBOILER COMPANY, OF DES MOINES, IOWA.-

SPECIFICATION forming part of Letters Patent No. 550,194, dated November19, 1895.

Application filed December 31, 1894. Serial No. 533,393. (No model.)

T @ZZ whom it may concern.'

Be it known that I, FRANK L. RICE, of Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inUpright Boilers; and I do hereby declare that the following' is a full,clear, and exact description thereof, reference being had totheaccompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to improvements in uprightboilers designed forheating water and the generation of steam for miscellaneous purposes,and more particularly to the special features of construction andconguration by which I obtain an exceedingly simple but effectivedevice, easily manufactured, and therefore relatively-inexpensive to thepurchaser, and which, by reason of its shape and details of itsconstruction, is not only durable, but specially effective for thepurposes intended.

The invention will be readily understood from the subjoined descriptionthereof, in connection with the accompanying drawings, but will be moreparticularly pointed out in the appended claims.

Figurel is a central vertical sectional View of a device embodying myinvention. Fig. 2 is a sectional plan view of the latter, t-aken uponthe line 2 2 of Fig; 1. Figs. 3 ande are similar views taken upon thelines 3 3 and 4. 4. of Fig. l, respectively.

The outershell of the boiler proper consists of two main sections ormetal parts A B, the former of which contains the iire-box A and thelatter a smoke-pipe B. These two sections A B are preferably ofcast-iron, the conformation of each being such that all of its parts maybe cast integral in one operation.

C is abase or support of any approved construction, provided with anannular shouldered recess c, within which the bottom end of the lowersection A of the outer shell of the boiler may rest. Said base containsa grate C', of any approved construction, suitably supported upon aflanged bracket c', and is The lower section or part A of the boilerproper is preferably cylindrical in form and is provided at its uppermargin with an outwardly-extending annular iiange a, which correspondswith a similar flange b projecting from the lower margin of theuppersection B, and by means of which the two sections A and B may be firmlysecured together by nuts a upon the bolts a2, extending through suitableapertures` in both flanges a b. j A gasket or packing b', of rubber orany other suitable materialfis interposed between the two flanges a b toinsure a tight joint.-

The lower edge of the bottom section A is extended inwardly at a3 toform a relatively narrow annular,horizontally-arranged bottom therefor,and integral with which and extending from the inner margin thereof isthe annular inner shell or wall a4, extending at an angle wit-h theouter shell. Within this inner shell or wall a4 is a conical chamberextending from the bottom lto the top thereof and greater in diameter atthe bottom than at the top, the lower portion of which chamber forms thefire-pot or chamber A. At the upper end of this chamber and extendingoutwardly from the wall a4 thereof is the annular flange a5, whichregisters with a corresponding flange b2 on the lower margin of the wallb3, that constitutes the smoke-pipe B'. In one or both of the adjacentfaces of the flanges a5 b2 are annular recesses or grooves b4, in whichis placed an annular gaske or packing of rubber or other suitablematerial b5, whereby a water-tight joint is formed between the flangesb2 a5.

The smoke-pipe B', being integral with the upper section B and the innershell surrounding the combustion-chamber A with the lower section A, itwill be manifest that no separate means of uniting the smoke-pipe B' andthe said inner shell a4 will be required, the external flanges and thebolts heretofore described or other equivalent means of uniting saidupper and lower sections A B being sufticient for the purpose. I am thusenabled to obtain a complete and effective union of the two sections A Bfrom the outside of the apparatus and require no interior rods, bolts,or other clamping mechanism. `The smoke-pipe B extends'slightly abovethe upper portion of the upper section B, as shown at be, for the IOOmore convenient attachment of the ordinary smoke-pipe or chimneythereto, and by which the products of combustion may be carried away.

Surrounding the inner shell a and within the outer shell is a waterspace or compartment F, and as a convenient means of access to the iireor combustion chamber A, I provide top, bottom, and side walls d d,which extend through the water-space and connect the wall ai* of theinner shell with the outer shell of the lower section A at anyconvenient point, but preferably near the upper end of said lowersection, as shown in Fig. l. l) is a door of any approved constructionremovably secured in any well-known manner to the outside wall of thesaid lower section A. At a point between the top of said door openingand the iiange of within and above the combustion-chamber A is aiiame-deflecting or spreading plate E of a diameter considerably lessthan the interior diameter of the combustion-chamber.Outwardly-extending bridge-walls e e connect the plate E with the innershell a4. This plate or spreader E is shown in Fig. l in a somewhatinclined position; but while this is a preferred arrangement it is notto be insisted upon, and the inclination may not only be varied, but thespreader E may be arranged horizontally, if necessary.

It will be observed that there is an annular space between the outerwall of the lower section A and. the wall of the inner or combustionchamber A, constantly widening as it approaches the upper end of thesection A, and which forms the water-space F, before referred to. Thenthe deiiecting-plate is hollow, as illustrated in the drawings,communication between the said water-space F and the interior of thedisk or spreader E is afforded by means of radial passages el extendingbetween the supporting walls or bridge-walls e, whereby a freecirculation of water may be had.

Gis awater-gage of any approved construction, suitably connected to thesections A and B, whereby the height of the water in the boiler may bedetermined in the usual manner, the water being supplied in anyconvenient manner through the pipe G'.

ll is any ordinary safety-valve secured in the top oll and communicatingwith the interior of the upper section B, for the purpose ofautomatically regulating the pressure of the steam therein. It will beobserved that the upper port-ion of the upper section B is rounded; butthis is not material, and any other coniiguration may be employed, ifdesired. The water in the boiler will ordinarily extend within thewater-space F some distance into the upper section B, as indicated, thespace in the said section B above the water-line forming a steam-dome.

The wall d4 surrounding the combustionchamber A is preferably fluted orcorrugated, as shown in Figs. 3 and 4, an advantage in this latterconstruction consisting in affording additional heating-surface and alsoa better and cleaner iire.

ln practice the operation oi. the boiler is simple. Vater being placedwithin the wa ter-space F by any suitable apparatus, and a fire beingplaced in the combustion-chamber A/,the products of combustion will riseuntil they strike the deliecting-plate E,which latter will spread anddeflect the flames and particles of combustion outwardly and against the.inner wall, which action tends to materially increase combustion ,toraise the temperature of the upper part oi. the wall a4, and to thusincrease the capacity of the boiler as a whole. The lower part of thewater-space F contains, it will be observed, a shallow annular sheet ofwater, and this arrangement also aids in the rapid heating of the water.This general result is also especially promoted by reason oi' the hollowdeilecting disk or plate E, which carries a shallow sheet of water thatbecomes very quickly heated. lVhile, therefore, a flat deliecting-platemay be used with success, I prefer the hollow disk described for thereason just stated, and, also, because a better circulation of water isthus insured, thereby greatly facilitating the operation of the boiler.lt will also be noted that the corrugations of the inner shell, togetherwith the deilector-plate integral with said shell and the iire-doorwalls unitingthe inner and the outer shells, greatly strengthens thelower section, while the ilangedmeeting-surfaces of the two sections andthe ex- TOO ternal boltin g equally adds strength and ri gidity to theboiler as a whole.

The above-described boiler, by reason ol' its extreme simplicity andpractical arrangement, is found in practice to be more eilective thanmore expensive and complicated devices now employed for the samepurpose.

Various modifications may be made in details without essentiallyaltering my invention, all of which I desire to be included as withinthe scope of my invention, as stated in the appended claims.

I claim as my inventionl. As a new article of manufacture, an up rightboiler, comprised only of an upper section and a lower section, theformerbein g provided with an interiorly arranged smoke pipe integralwith or cast in one piece therewith, and the latter being provided. withan interiorly arranged combustion chamber integral with the lowersection, the upper surface of the combustion chamber registering withand against the lower surface ot' the smoke pipe, a suitable base uponwhich the boiler proper is mounted and means for suitably connecting thetwo sections together, substantially as described.

2. An upright boiler comprising only an upper section provided with aninteriiorly arranged integral smoke pipe and a lower secI tion providedwith. an interiorly arranged integral combustion chamber, the upperedges ITO of the combustion chamber registering with and against thelower edges of the smoke pipe, means for suitably connecting the twosections together, and a deiiecting plate positioned` in and near theupper end of the combustion chamber integral with the walls thereof,substantially as described.

3. An upright boiler comprising only an upper section provided with aninteriorly arranged integral smoke pipe and a lower section providedwith an interiorly arranged integral combustion chamber, a hollowdeliecting plate integrally arranged within the combustion chamber, nearthe upper end thereof, a water space surrounding the combustion chamberopening directly into the upper section and means for the passage ofwat-er therefrom into and out of the said hollow plate, substantially asdescribed.

4. An upright boiler comprising only an upper section having aninteriorly arranged smoke pipe integral therewith and a lower sectionprovided with an inner shell integral therewith constituting acombustion chamber, the upper surface of the shell registering with andagainst the lower surfaces of the smoke pipe, a water space in the lowersection surrounding the combustion chamber, a space in the upper sectionsurrounding the smoke pipe, the latter space communicating directly withthe former, and means located outside of the boiler for securing the twosections together, substantially as described.

5. An upright boiler, comprising a cylindrical lower section having anoutwardly directed annular flange at its upper margin, and an inwardlyarranged tapering shell integral therewith to form a combustion chamberand provided at its upper margin with an annular flange, an uppersection provided with a downwardly extending shell constituting a smokepipe, the lower margin of said upper section and of said smoke pipebeing provided with annular flanges corresponding with the flanges onsaid lower section and shell, suitable packing located between themeeting. surfaces of said iianges, and bolts engaging the said externalflanges of the upper and lower sections for clamping the lattertogether, substantially as described.

6. An upright boiler, consisting of two main parts adapted to be boltedtogether externally, the upper part comprising a steam dome, and adownwardly directed smoke pipe cast integral with the said uppersection, the lower sectioncomprising an outer cylindrical shell and aninterior shell, the latter constituting a combustion chamber, a waterspace located between the outer and inner shells, an opening throughboth shells affording a means of communication to the combustionchamber, a hollow deflecting plate arranged near the upper end of thecombustion chamber integral with the inner shell and having lateralopenings through which water may pass from the water space into and outof the said de fleeting plate, substantially as described.

7. An upright boiler comprising a base C provided with a grate C', twomain sections A and B of cast metal, the lower section comprising anouter shell and an integral tapering shell or wall a? with a water spacebetween the two shells, the space within the inner shell constituting afire chamber, a passage or opening through said shells by whichcommunication may be had with the combustion chamber, a hollowdeliecting plate in the upper end of the latter provided with lateralpassages connecting with the water space, and means for securing the twosections together from the outside of the boiler, substantially asdescribed.

In testimony that I claim the foregoing as my invention I aflix mysignature, in presence of two witnesses, this 28th day of December,1894.

FRANK L. RICE. Witnesses:

TAYLOR E. BROWN, WILLIAM L. HALL.

